Old 1970s cottage, is 6 amps safe on an old 5-15?

[scottm]

Couple of points:

Don't confuse GFI buttons on the receptacle with over-current circuit breaker (at the panel). Pulling too much current will pop the breaker not the GFI fault. Some breakers in the panel can be GFI equipped (buttons appear there) which protect that whole branch.

The Tesla UMC has ground detection built-in and will trip itself (shows a red LED where green normally appears while charging) if you've got bad / leaky wiring to the receptacle. So there's no benefit or need to plug into GFI equipped outlet.

 

[e-FTW]

Couple of points:

Don't confuse GFI buttons on the receptacle with over-current circuit breaker (at the panel). Pulling too much current will pop the breaker not the GFI fault. Some breakers in the panel can be GFI equipped (buttons appear there) which protect that whole branch.

The Tesla UMC has ground detection built-in and will trip itself (shows a red LED where green normally appears while charging) if you've got bad / leaky wiring to the receptacle. So there's no benefit or need to plug into GFI equipped outlet.

Well aware of that. The point was that this indicated a more recent outlet than the rest of the place.

 

[boaterva]

Never stayed in a rental place where you couldn't reset a breaker if you needed to. Hope you have someone's phone number if needed!

But sounds like it's running well at 10 Amp. BTW, single whole digit changes in a digital voltage gauge that doesn't show you anything but whole numbers mean nothing, as you have no idea what the next digit is... it could be 110.9 going to 111.1 for all you really know.

 

[Brass Guy]

This talk about GFI got me wondering - I thought the Tesla tested the ground circuit before charging, which should trip a GFI outlet. Maybe you got lucky and the GFI outlet doesn't trip. If you can call a malfunctioning GFI outlet lucky.

 

[boaterva]

This talk about GFI got me wondering - I thought the Tesla tested the ground circuit before charging, which should trip a GFI outlet. Maybe you got lucky and the GFI outlet doesn't trip. If you can call a malfunctioning GFI outlet lucky.

Any outside (garage, carport) socket should be connected to a GFCI, so, it really can't do anything that would trip one.

Also, GFCIs don't technically (*technically*) need a ground, they measure the flow of current in and out, and trip when it's different (when current is "lost" (going through you!)).

How GFCIs Work